Russia’s attempted annexation of Crimea and its threats to eastern and southern Ukraine amount to an “alarming use of both military force and subversion,” the chairman of the U.S. Joint Chiefs of Staff said here May 21.

A day after the Justice Department charged five members of China’s military with hacking into computer networks of American companies, a DOD spokesman said the Pentagon wants to continue developing military relations with Beijing

On Defense Secretary Chuck Hagel’s first official visit to China, the People’s Liberation Army allowed him to become the first foreign visitor to tour the refitted Russian aircraft carrier — the PLA’s first — called Liaoning.

Australia and the United States are expanding cooperation in areas concerning defense and space, U.S. officials said at a November 20 press briefing after consultations with their Australian counterparts at the annual Australia-U.S. ministerial meeting.

The U.S. and Russia disagree on some aspects of their bilateral relations, but there are many areas where the countries can and do cooperate, Assistant Secretary of Defense Evelyn Farkas told the Heritage Foundation.